AK4425A Datasheet, PDF (6/27 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output

[AK4425A]
ANALOG CHARACTERISTICS
(Ta = 25°C; VDD=AVDD = +5.0V; fs = 44.1 kHz; BICK = 64fs; Signal Frequency = 1 kHz;
24bit Input Data; Measurement frequency = 20Hz ∼ 20kHz; R_L ≥5kΩ)
Parameter
min
typ
max
Units
Resolution
24
Bits
Dynamic Characteristics (Note 4)
THD+N
fs=44.1kHz, BW=20kHz
-91
-84
dB
fs=96kHz, BW=40kHz
-91
-
dB
fs=192kHz, BW=40kHz
-91
-
dB
Dynamic Range (-60dBFS with A-weighted. (Note 5)
100
106
dB
S/N (A-weighted. (Note 6)
100
106
dB
Interchannel Isolation (1kHz)
90
100
dB
Interchannel Gain Mismatch
0
0.5
dB
DC Accuracy
DC Offset
(at output pin)
-5
0
+5
mV
Gain Drift
100
-
ppm/°C
Output Voltage (Note 7)
2.05
2.2
2.35
Vrms
Load Capacitance (Note 8)
25
pF
Load Resistance
5
kΩ
Power Supplies
Power Supply Current: (Note 9)
Normal Operation (fs≤96kHz)
Normal Operation (fs=192kHz)
Power-Down Mode (Note 10)
24
36
mA
27
40
mA
10
100
μA
Note 4. Measured by Audio Precision (System Two). Refer to the evaluation board manual.
Note 5. 98dB for 16bit input data
Note 6. S/N does not depend on input data size.
Note 7. Full-scale voltage (0dB). Output voltage is proportional to the voltage of VDD,
AOUT (typ.@0dB) = 2.2Vrms × VDD/5.
Note 8. In case of driving capacitive load, inset a resistor between the output pin and the capacitive load.
Note 9. The current into VDD and AVDD.
Note 10. All digital inputs including clock pins (MCLK, BICK and LRCK) are fixed to VSS1(VSS2) or VDD(AVDD).
MS1127-E-01
-6-
2011/03